The weddings "will be in our minds the ultimate statement of equality, that all the couples are entitled to the same exact thing," Lewis said.

Queen Latifah

Nate Beckett / Splash News Online

But producers don't want to characterize the weddings as a stunt for marriage equality. Instead, they see it as part of the Grammys ongoing tradition of taking on complex social issues through music.

"We're serious about this," Ken Ehrlich, the longtime producer of the Grammys, told the Times.

"We don't need to stoop to the level of trying to find gimmicks and sensationalistic approaches to what we do," Neil Portnow, the president of the National Academy of Recording Arts and Sciences, added.

It will be an especially poignant night for Lewis, whose sister Laura and her fiancé Alex will be among the couples exchanging vows on stage Sunday.

"A night that is already tremendous for me, for the music," Lewis, whose group is nominated seven times this year, said of the honors. "But to have my sister get married and my family there watching it – that makes it a whole other level of amazing."